AI Development
Estimate LLM API Cost per Request Before You Ship
Estimate LLM API cost per request from real token usage, not calculator guesses. PHP code to log usage, find p95 cost and set a…
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Category: WordPress for Developers
Programming Security
Leaked API Key? What to Do in the First Ten Minutes
Leaked API key? Revoke or rotate it, verify your PHP app uses the replacement, check for unauthorized usage, and fix the exposure before it…
WordPress for Developers
LLM API Key Exposed? Frontend JavaScript Is Public Code
Exposed LLM API keys in frontend JavaScript can be stolen and misused. Protect them with a PHP server-side proxy, authentication, rate limits, and output…
WordPress for Developers
API Key Environment Variable in PHP: Where It Goes
Learn where a PHP API key environment variable should live, how to read it safely, and every place it must never end up: git,…
WordPress for Developers
Stream an LLM Response with Server-Sent Events (SSE)
Stream LLM responses using SSE, JavaScript fetch, and WordPress REST endpoints while fixing PHP buffering issues that prevent tokens from appearing in real time.
WordPress for Developers
429 rate_limit_exceeded vs insufficient_quota Explained
Tell 429 rate_limit_exceeded apart from insufficient_quota so retries stop wasting time and billing issues get fixed fast.
WordPress for Developers
OpenAI 429 Retry-After Header: How to Retry Correctly
OpenAI API 429 errors need different fixes. Check Retry-After, use backoff with jitter for rate limits, and avoid retrying quota or spend-limit errors.
WordPress for Developers
Call OpenAI API From PHP Without an SDK
Call the OpenAI API from PHP using cURL and JSON, with secure API key storage, WordPress plugin integration, response handling, and HTTP error checks.
WordPress for Developers
Exponential Backoff Jitter API Retries That Work
Exponential backoff jitter API retries stop retry storms when LLM calls fail together. See jitter formulas, PHP code and which errors are safe to…
WordPress for Developers
WP-CLI Bulk Update Posts Safely, Without the Admin
Bulk update posts with WP-CLI: select IDs with wp post list, apply one change, and verify. Back up with wp db export first, and…
WordPress for Developers
WP_CLI add_command: Write a Custom WP-CLI Command
Register a custom WP-CLI command with WP_CLI::add_command, document its arguments in the docblock, and make it safe to run on production: dry run first.
WordPress for Developers
WordPress Child Theme functions.php That Survives Updates
A child theme's functions.php loads before the parent's, and copying the parent's file causes a fatal error. Build a child theme that survives updates.
WordPress for Developers
theme.json Block Theme Guide: Where add_theme_support Went
Where add_theme_support went in block themes: the theme.json v3 settings that replace it, the layers that override your file, and what stays in PHP.
WordPress for Developers
wp_enqueue_script Dependencies and What Breaks Without Them
A missing dependency makes WordPress drop your script tag with no warning. How $deps, handles, defer and versions really work, and how to debug…
VPS & Server Administration
CyberPanel 503 Errors: Troubleshooting OpenLiteSpeed, Apache, and PHP
Diagnose CyberPanel 503 errors across OpenLiteSpeed, Apache backend, PHP-FPM, and CLI PHP with a safe, step-by-step VPS troubleshooting workflow.